Nail



WILLIAM K. EROST, OF HOLLYWOOD, CALIFORNIA.

NAIL.

harnais..

Application led .Tune 7, 1921.

To all 't0/10m t may concern:

Be it known that l, 4./ViLLiuivi K. Fnos'r, a citizen of the United States, residing at lllollywood, in the county of Los Angeles and State of California, have invented certain new and useful improvements in Nails, of which the follovving is a specification.

This invention rela-tes to fastening elements, such as staples, nails, spikes and the like, and the primary object of the present invention is to provide a novel fastening element of this character, which is so constructed that the withdrawal thereof through accident or design from the work will be precluded, thereby insuring the effective holding of the work with which the 'fastening element is associated.

A further object of the invention is to provide a nail having a shank provided with an integral resilient tongue, which is adapt# ed to flex dui-ing the driving of the nail into the work, whereby the nail can be readily and easily driven into place, and to expand or resume its normal position after the driving of the nail, thereby permitting the effective engagement of the fibers of the wood, whereby accidental creeping of the nail. from out of the work is prevented.

A further object of the invention is to provide a 'fastening element embodying a shank having an :inwardly extending inclined slot formed therein, n-o'viding a resilient tongue, which is adapted to engage the fibers of the wood to prevent the withdrawal of the fastening element :troni the work, the slot also permitting the ready clinching of the nail, when necessary or desirable.

A, still further object of the invention is to provide an improved fastening element of this character, which is durable and efficient in use, one that is simple and easy to manufacture, and one which can be placed upon the market at a minimum cost.

lV ith these and other objects 'in view, the invention consists in the novel construction, arrangement and formation of parts, as will loe hereinafter more specifically described, claimed and illustrated in the accompanying' drawings forming a part of this specifica tion, in which drawings;

Figure l is a side elevation of the iniproved fastening element.

Figure 2 is a similar view showing the fastening element turned at quarters in relation to Figure 1.

Specification of Letters Patent.

figuration.

The nail A as shown includes a cylindrical shank 10 having the u 1i on one end, and the head 12 formed on its opposite end. The shank 10 adjacent to 80 the penetrating point 11 thereof is provided with an outwardly extending iiiwardlv inclined slot 13. This slot 13 terminates short of the penetrating point, and ends substantially at the longitudinal center of the shank. which owing' to the inherent qualities of the material from which it :is formed, is resilient, whereby the same will readily engaoe the fibers of the wood, in which it is drivezii` hereby the accidental withdrawal of the nail will be absolutely precluded. Owing to the formation ofthe slot 13. thc inner end of the tongue 14 will be provided with a rela` tivelv sharp penetrating point 15, which fa` Patented May 30, 1922. seriali No. 475,672.

s higure 3 is a side elevation of the nail showingthe saine driven into the work, the work being shown in section.y

^tigure l is a view similar to Figure 3, 60

showing the position of the locking tongue when an eilort is made to withdraw the nail troni the work.

igure 5 is a view similar to Figures 3 and et .illustrating the configuration of the 65 nail after the saine has been clinched.`

Ixefeiiing to the drawings in detail,

parts throughout the has been shown in is to be understoodthat fastening' element, of any size or con- 75 penetrating point This slot 13 defines a tongue 14,

cilitates the engagement of the tongue with the wood bers.

In some instances where the shank of the fastening element section, the sides of the penetrating tongue le will have to be tapered in order to provide the point l5, as is readily apparent.

is not circular in cross y referring to Figure 3 of the drawings,

it can be seen that when the nail A is driven into the work, designated by the letter B, the tongues 14 will lie within the plane of the outer surface of the shank 10, and thus the nail can be readily and easily driven into the work. It can be seen that when the nail has been driven fully into the work, the tongue 14 will expand or resume its normal position, as will also the work fibers, thus forming a Contact between the point l5 of the tongue and the wood bers. This absolutely prevents creeping of the nail or the withdrawal thereof from the work. A If an attempt is made to withdraw the nail from the work, it can be seenv that the tongue 14 will? be bent outwardly, as clearly shown in Figure 4 of the drawings, and thusl dig deeper into the wood fibers, which will cause the nail to hold its position in the work.

If in someA instances, it is desirable to clinch the nail, it is `merely necessary to give the outer end thereof a few blows with a hammer, and the shank 10 will readily vbend l at the slotted portion 13 thereof, caused by the reduced sectional area of the shank at this point. This will cause the tonue 14 to be moved further into engage l. A fastening element comprising a cylindrical shank having a penetrating point formed on one end thereof and an 1nwardly extending slot extending in from one side thereof toward the penetrating point, and terminating short thereof in sub-l stantial alignment with the longitudinal center of the shank, a resilient tongue defined by said slot, and a tapered penetrating point formed on said tongue.

2. ln a fastening element, a shank having a penetrating point formed on one end thereof and provided with an inclined slot extending inwardly from one side thereof toward the penetrating point, a resilient tongue defined by the slot having its faces tapered to provide a relatively sharp penetrating point, the resiliency of the said tongue permitting the same to flex inwardly of the outer surface of the shank during the forcing of the shank into the work and the engaging of the fibers of the wood during the moving of `the shank outwardly of the work.

wiLLiAM K. FROST. 

